Originally posted by steelfury
The dust of carbon fibre is also fairly hazardous if you are customising it.
You can say that again.
The dust is also rather nasty in your work space.
Required items for working carbon fiber are a respirator (I use a 3m 6000 model, works well, and is in-expensive) - if you do not have a respirator do not work CF, it'll mess you up.
A well ventilated work space and a good clean-up system if not working it right into a running vaccum system.
Longs sleeves, full length pants, head covering and eye protection.
When working carbon fiber you have two risks to deal with, the first and foremost being the dust.
Carbon fiber dust is more like millions of tiny carbon splinters - the dust lays heavy on stuff, and if you get your hand or arm in it, its like getting it in fiber-glass, lots of little splinters, they hurt and itch and are generally nasty. If you get them in your hair they will fall out in your clothes, down your back, into your eyes, your food, your car, your bed, etc. In your eyes they are like any other splinter, not fun I am sure.
But, and this is why you must have a respirator not just a dust mask or rag over your face, you can also breathe them in. A lung irritant to say the least, they have the potential for causing whole hosts of respritory problems.
The other concern is the phenolic itself - when working it the dust if inhaled/ingested can cause harm, but also if it get stoo hot (from friction) it'll let out some nasty gasses, like formaldehyde(sp?) - again, respirator time.
That said, I love C/F - its tought stuff, and I actually really really enjoy working it and enjoy the finished product.
For hard use stuff I prefer micarta or G-10 generall, because C/F can chip out around thong holes, etc. due to the nature of the material, the carbon fiber weave. A tighter more solid woven material like canvas/linen in micarta wont due that, and G-10 also has a tighter weave than C/F and wont do that.
I've shot at G-10, Micarta, and C/F - they hold up pretty well in thicknesses over 1/8" but are not really bullet proof, tough materials though. Very impact resistant (a 1200 FPS FMJ aside

) and durable, resistant to sun, rain, snow, mud, dirt, chemicals, etc.
C/F is great for gents knives, general utility etc. but for a har duse combat or field knife, because of the chipping concerns I'd use a phenolic matrix based laminate with a tighter woven material, I.E. micarta.